Neco Model Questions Vol1 2025 Geography Question 30
Practice objective / multiple choice question 30 from the 2025 Neco Model Questions Vol1 Geography examination.
A sedimentary rock layer 150 m thick has a bulk density of \(2.3\ \text{g\,cm}^{-3}\) and a porosity of 12 %. The rock consists of quartz grains (density \(2.65\ \text{g\,cm}^{-3}\)) and its pores are fully saturated with water (density \(1.0\ \text{g\,cm}^{-3}\)). Calculate the mass of quartz grains per cubic metre of the rock (in kilograms).
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This is Neco Model Questions Vol1 2025 Geography Question 30. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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